A watch pot never boils so watch your tanks and they wont over fill.
Honestly what I have learned is the same I have learned from all my hobbies, whether its photography, automotive or fish. People who aren't into your hobby will look at you like you have leprosy if you talk about it, people who share the hobby will be instant friends that you can talk to for hours on end upon meeting, if you dive deep enough your hobby will expand to all aspects of your life intertwining with any other hobbies you have. Eg: I went for a drive through the hills to the river today with friends, collected some driftwood for my tanks and the took photos of the sunset and headed home again.